Original Article
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. May 14, 2011; 17(18): 2326-2331
Published online May 14, 2011. doi: 10.3748/wjg.v17.i18.2326
Table 1 Characteristics of colorectal carcinoma cases and controls n (%)
ParametersCasesControlsP value
Age (mean ± SD, yr)57.85 ± 10.0558.10 ± 13.470.751
Sex
Male259 (54.1)254 (52.3)
Female220 (45.9)232 (47.7)
Total4794860.574
Smoking status
Never334 (69.7)357 (73.5)
Former15 (3.1)39 (8.0)
Present130 (27.1)90 (18.5)
Total4794860.199
Drinking status
Never10 (2.1)16 (3.3)
Former280 (58.5)207 (42.6)
Present189 (39.5)263 (54.1)
Total4794860.248
Histological grade
High11 (2.3)
Intermediate296 (61.8)
Low172 (35.9)
Location
Colon233 (48.6)
Rectum242 (50.5)
Colon and rectum4 (0.8)
Stage
I142 (29.7)
II110 (23.0)
III142 (29.6)
IV85 (17.7)